I am going around in circles here ... I had opened my extension manager and do not see the HTML5 Pack listed. SO - I went to the area for the updater to install it - http://www.adobe.com/support/dreamweaver/downloads_updaters.html - and when I attempt to install THAT - I receive an error message stating "ERROR LOADING UPDATER OVERFLOW". So - bottom line - I can't get at trying to install the HTML 5 Pack - and really need some assistance to see what I CAN do. Does anyone have any suggestions? BTW - I have CS5.5 - and I believe IS the latest build (version 11.5 - Build 5315 ... \

Thanks for the quick answer - I wasn't sure if it was baked in or not. WHat I am TRYING to do - is to embed a MP4 file into a web page - and format the page in HTML 5. However - I dont' see where that is an option - and THOUGHT that just opening an HTML 5 new page - would enable tme to do that. Am I going about this - in the wrong way?

Is there some way I can still download the HTML5 pack for Dreamweaver CS5?? I purchased the Web Premium CS5 package last year and do not want to upgrade to CS5.5 just yet given that it's only been a year!